Functions of Computers. . Most machines do only one job, some are multifunctional

1.

Functions of Computers

2.

Computer is one of the inventions
of the 20th century that changed
the world greatly. The first
computers of the 1940s were
enormous. But now they are
almost in every family and in
every office building.

3.

Most machines do only one job, some
are multifunctional (e.g. a TV set + +
DVD player). But no device is as
multifunctional as computer. The parts of
the machine (or its hardware) remain the
same, you change only the program
(software) and your computer
immediately learns to do various things.

4.

A browser program is designed to
look at pages on the Internet (you
can also say to browse, this accounts
for the word browser). A word
processor program lets you to print
text and then change styles of fonts
and sizes of pages.
A database program is used for
searching and sorting records. Such
program is used in shops, libraries,
hospitals, accountant offices, and so
on. They make work with great
amounts of data much quicker.

5.

Computers are found everywhere
and used in every sphere of life. In a
plant one can make a computer
model of a car or plane and check
its resistance to stress. Such
calculations without a computer
could have taken several months.
Computer is used at school:
children watch films, presentations
and web pages. This helps them to
study effectively.

6.

Computers also have some
disadvantages. There is a
famous joke that computers are
designed to solve problems but
half of the time they are the
problem. As computer is a
complicated device, one small
breakage may stop its work.
Moreover, the equipment is
soon out of date.

7.

Besides, there is a problem of
compatibility. First of all, there are
hardware devices which can’t
work with the old operating
systems, such as a processor, a
hard disk drive, a video card, etc.
Then, there are programs which
need more resources than
computer actually has.

8.

Thirdly, computers become
more and more complicated,
and much effort is required to
learn how to work with them.
Fourthly, computer viruses
cause a lot of trouble — they
can spoil, remove or steal
computer data, and every user
knows it well from his
experience.

9.

And on top of all, computer is a multifunctional device, as we already
know, so it can be used both to do work and to entertain oneself.
Children often fall prey to computer and Internet: they play computer
games, spend their free time chatting with friends on the Internet and
doing practically nothing. This aspect can’t be denied.

10.

To crown it all, computer is a
good device like many
others, designed to help
people. But it’s our own free
will that lets us use it in
order not to waste time but
to get best results.

11.

Answer the following questions to the text.
1. When computer invented?
2. Were there many computers in the middle of the 20th century?
Why do you think so? Find a possible explanation in the text.
3. Is computer a multifunctional device?
4. What types of computer programs can you name?
5. In what spheres of life can computers be used?
6. Computers have many disadvantages, don’t they?
7. What are their main disadvantages? Are there any that you
have met using your computer?